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RPM resource libungif4

The libungif package contains a shared library of functions for loading
and saving GIF format image files. The libungif library can load any
GIF file, but it will save GIFs only in uncompressed format (i.e., it
won't use the patented LZW compression used to save "normal" compressed
GIF files).
Install the libungif package if you need to manipulate GIF files. You
should also install the libungif-progs package.